| Abbreviation | Definition |
|---|---|
| VT | Vertical Tank |
| VT | Virtual Tributary |
| VWAB | Volusia Water Policy Advisory Board |
| VWD | Vallecitos Water District |
| VWG | Voluntary Waterway Guide |
| VWM | Volunteer Water Monitoring |
| VZIP | Vadose Zone Investigation Program |
| W | Water |
| W | Wet |
| W/L | Water Line |
| W/T | Water Tight |
| WACLIM | Climate Data Service for West Africa |
| WAFAB | Western Australian Fisheries Advisory Board |
| WAFC | World Area Forecast Center |
| WAFC | World Area Forecast Centre |
| WAFO | Wave Analysis for Fatigue and Oceanography |
| WAFR | World Appraisal of Fishery Resources |
| WAFS | World Area Forecast System |
| WAFW | World Average Fresh Water |
| WAFZ | Western Australian Fishing Zone |